Aqua wrote
Where did you get this information from? Any Website etc.


I see pots of H. polysperma for sale at my local (New Hampshire) Petco all
the time.

From the Arizona Aquatic Gardends www.azgardens.com...

"Hygrophila, Green (Hygrophila polysperma) ATTN: THE U.S.D.A. HAS ISSUED
THIS PLANT TO BE A NOXIOUS WEED CLICK HERE FOR MORE DETAILED INFO"

(The link didn't work for me)